Kirk Stroke

Credit: AP

U.S. Sen. Mark Kirk, center, is acknowledged after emerging from the 103rd floor stairwell at Chicago's Willis Tower during the RIC SkyRise Chicago event, a fundraiser for the Rehabilitation Institute of Chicago, where Kirk is a patient. On the left is Joanne Smith, M.D., President and CEO of the Rehabilitation Institute of Chicago. Behind Kirk is Michael Klonowski, a physical therapist who is assisting Kirk with his recovery from a stroke. (AP Photo/Teresa Crawford)